On the 'Scratchpad' you can create 'Perchance Lists' by creating a variable (not a list):

// Variable names must be upper case
VAR1 = here is your text [VAR2]

// This wouldn't work
// VAR2
//   one
//   two
//   three

// This would work
VAR2 = {one|two|three}

So, here is the fixed generator: https://perchance.org/ai-text-to-image-generator#data=uup1:335e398ae27a4c6f9cbe43b0fec928cf.gz

EDIT: Here is an example of using the variables in the Scratchpad with Perchance's Dynamic Odds to only toggle the correct items/output text based on a variable.

OUT = [x = SCENE.evaluateItem, '']a person in [BACKGROUND] [ACC]
SCENE = {beach|office|default}
BACKGROUND = {a white sand tropical beach^[x == 'beach']|a modern corporate office^[x == 'office']|on a cafe^[x == 'default']}
ACC = {wearing sunglasses^[x == 'beach']|wearing business formal attire^[x == 'office']|^[x == 'default']}

https://perchance.org/ai-text-to-image-generator#data=uup1:5c11ede62372d4a2c6afd79fde2410c8.gz

I believe the textboxes in t2i are just simple textboxes instead of parsed for perchance syntax.

Here's my take on achieving what you want.

I placed your lists in the generator near the top. then I made another input selector deally called extrastyle which so far has just styles milf (yours) and none. Then, where it determines what the image prompt is, I have it do extrastyle then artstyle instead of just artstyle. This way you can make photo milfs, anime milfs, etc.

i am otherwise a noob on the things u are asking but Im sure others can help :)

happy milfing!